Vicarious Sacrifice: The Unconditional Covenants: Abraham"s Use of the Faith-Rest Drill: Abrahamic Served as the Doctrinal Rationale for Abraham to Obey the Mandate to Sacrifice Isaac; the Covenants in Order: Adamic: the First Advent of Messiah Prophesied through Procreation; Noahic: Messianic Line Narrowed to Semitics through Shem; Abrahamic: the Line Narrowed to the Jews through Isaac; Davidic: Narrowed to the Tribe of Judah, House of David; New: All Fully Implemented in the Millennium; the Ascension